Whoever in time of war, with intent that the same shall be communicated to the enemy, shall collect, record, publish or communicate or attempt to elicit any information with respect to (a) the movement, numbers, description, condition or disposition of any of the armed forces, ships, aircraft or war materials of the United States or this State, (b) the plans or conduct or supposed plans or conduct of any naval or military operations or (c) any works or measures undertaken for, connected with or intended for the fortification or defense of any place or any other information relating to the public defense which might be useful to the enemy shall be punished by death or by imprisonment for not more than thirty years.